Bovine, liver: Periacinar necroses due to anaemia caused by lice.
Animal: Bovine, female, 3 months old, Norwegian Red
History: Calf with stunted growth and heavy infestation of sucking lice submitted to the clinic due to acute respiratory distress. Gross findings included lice infestation, pneumonia, abnormal contents of the fore-stomachs and general pallor of the carcass including a pale yellowish liver.
Histological description: In periacinar areas of the liver lobules there are necrotic and vacuolated (fatty) hepatocytes, while normal looking hepatocytes are restricted to a narrow periportal zone.
Diagnosis: Necrosis, periacinar, liver
Necropsy performed by: Kai-Inge Lie, Oslo, Norway.
Photo by: Kai-Inge Lie